Process cartridge including a photosensitive drum for an electrophotographic image forming apparatus

  • US 8,369,744 B2
  • Filed: 01/26/2012
  • Issued: 02/05/2013
  • Est. Priority Date: 06/20/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process cartridge comprising:

  • i) a photosensitive drum rotatable about a drum axis thereof;

    ii) a rotatable developing roller configured to develop a latent image formed on said photosensitive drum;

    iii) a coupling member provided at an axial end portion of said photosensitive drum and rotatable about a coupling axis thereof so as to transmit a driving force to said photosensitive drum, said coupling member being capable of inclining relative to said photosensitive drum so that the coupling axis inclines relative to the drum axis; and

    iv) a regulating portion surrounding said coupling member to confine a range of the inclination of said coupling member,wherein said regulating portion is provided with a portion that opens in a direction away from said drum axis and away from said developing roller, andwherein an angle between the coupling axis and the drum axis is larger when at least a part of said coupling member is in said portion that opens than when said coupling member contacts another portion of said regulating portion.

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